Packing List:
1 x Smart Bracelet
1 x Chinese and English Manual
Specifications:
Color: Black / Blue (optional)
Material: TPU, TPSIV, rubber
Overall size: length 25.8CM width 1.8CM thickness 1.4CM
Main chip: NRF51822
Bluetooth version: 4.0BLE
Lithium battery capacity: 100mAh polymer battery (built-in)
Waterproof: IP67 (life waterproof)
Wireless distance: 7m
Accelerator: 3-axis acceleration sensor
Heart rate sensing: Dual rate light static heart rate sensor
Blood pressure detection: Pulse wave motion detection
Wearing: Wristbands
Screen size: 1.2 inches
Voltage: DC 5V
Standby time: 7 days
Life time: 5 days
Charging time: 60 minutes
Interface: USB 2.0
Bluetooth name: V8
APP support languages: Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Vietnamese, Latin, Cyrillic, etc.
System support: For iOS7.0 and above, Android 4.0 and above
Features: Blood pressure, heart rate, pedometer, distance test, calorie consumption management, sleep management, exercise target management, vertical and horizontal screen switch, turn wrist to bright screen, sedentary reminder, phone call reminders, WeChat / SMS / QQ message vibration + text display. 
